Christian Sandvig wrote a brief HuffPost response to Data Dealer a couple years back, mainly criticizing it, while applauding its efforts too (disclosure: Christian is my PhD advisor):
Your email also reminded me I used Data Dealer as a starting point in an essay published last year, for a collection of short pieces aimed at general public about potentials for data-driven discrimination. The collection may be of interest to some on this list:
Peña Gangadharan, S., Eubanks, V., & Barocas, S. (Eds.). (2014). Data and Discrimination: Collected Essays. Washington, DC: Open Technology Institute, New America Foundation.
I think as an awareness tool, Data Dealer is interesting example, despite some liberties it takes when attempting to simplify and put things into game form. It got a bit of press attention back in 2013, when going live:
http://datadealer.com/fame
Darren